AMC 8 1988 Problem 23
AMC8 1988 年第 23 题
比与比例★★★☆☆
Maria buys computer disks at a price of 4 for $5 and sells them at a price of 3 for $5. How many computer disks must she sell in order to make a profit of $100?
以 $5 买 4 张的价格购入计算机磁盘，以 $5 卖 3 张的价格出售。为获得 $100 利润，她必须卖出多少张磁盘？
- A.100
- B.120
- C.200
- D.240
- E.1200
正确答案 · Correct Answer
D
解析 · Solution
解析整理中
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